CN214121879U - Concrete dynamic impact test device used in true triaxial stress state - Google Patents
Concrete dynamic impact test device used in true triaxial stress state Download PDFInfo
- Publication number
- CN214121879U CN214121879U CN202023088813.0U CN202023088813U CN214121879U CN 214121879 U CN214121879 U CN 214121879U CN 202023088813 U CN202023088813 U CN 202023088813U CN 214121879 U CN214121879 U CN 214121879U
- Authority
- CN
- China
- Prior art keywords
- counter
- force support
- support
- base
- test piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009863 impact test Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 42
- 239000002184 metal Substances 0.000 claims description 27
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a be used for concrete dynamic impact test device under true triaxial stress state, the on-line screen storage device comprises a base, the right-hand member of base is equipped with the supporting seat, is equipped with the transmitter on the supporting seat, the front end rear end and the left end of base all are equipped with the support. The utility model discloses, the test piece that will await measuring is put in true triaxial device, can give the power of a unipolar or multiaxis direction of test piece through the pneumatic cylinder, when the pneumatic cylinder drives the piston rod and removes to the direction of test piece, the go-between can drive the impact bar and remove to the direction of test piece, the left end square portion and the test piece contact of messenger's impact bar, then open the transmitter, launch the striking piece that moves at a high speed through the transmitter, give impact bar one through the striking piece to the power of test piece direction, then through impact bar striking test piece, thereby test the test piece, through the utility model discloses can be to the concrete at unipolar, biax and triaxial power impact test under the stress state, press close to the true atress condition of concrete in the actual engineering more.
Description
Technical Field
The utility model relates to an impact test device specifically is a concrete dynamic impact test device under being used for true triaxial stress state.
Background
The split Hopkinson pressure bar test device is widely applied to concrete dynamic impact tests, dynamic characteristics of concrete materials under high strain rate can be effectively researched, a true triaxial test machine can realize simulation of concrete single-axis or multi-axis stress states, and dynamic mechanical property research of concrete can be carried out by controlling loading rates in different directions.
At present, an incident rod and a transmission rod of the split Hopkinson pressure bar test device are in non-pressure contact with a test piece, so that the test device can only research the impact resistance of concrete under a stress-free condition. However, concrete in actual engineering is stressed due to mutual constraint of structures and is often in a single-axis or multi-axis stress state, so that the ordinary split Hopkinson pressure bar test device is adopted to carry out test research, and obvious limitations exist. The true triaxial testing machine is a dynamic mechanical property research under the condition of low strain rate, and cannot be used for researching the dynamic mechanical property of concrete under the condition of high strain rate caused by high-speed impact such as simulated explosion and the like. Therefore, the utility model provides a be used for concrete dynamic impact test device under true triaxial stress state to solve the above-mentioned problem that proposes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be arranged in real triaxial stress state concrete dynamic impact test device down to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a concrete dynamic impact test device used in a true triaxial stress state comprises a base, wherein a support seat is arranged at the right end of the base, a transmitter is arranged on the support seat, supports are arranged at the rear end and the left end of the front end of the base, a support plate is arranged at the left end of the support seat at the upper end of the base, a fixed seat is arranged at the left end of the support plate at the upper end of the base, a hydraulic device is arranged at the upper end of the fixed seat, the hydraulic device comprises a hydraulic cylinder and a piston rod, a first counter-force support is arranged above the fixed seat, a hydraulic device is also arranged at the lower end of the first counter-force support, a plurality of metal rods are arranged between the first counter-force support and the fixed seat, a second counter-force support is arranged at the right end of the fixed seat above the base, the second counter-force support is fixedly connected with the support plate, and a third counter-force support is arranged at the left side of the second counter-force support, the hydraulic device is arranged at one end, close to each other, of the second counter-force support and the third counter-force support, the second counter-force support and the third counter-force support are connected through a plurality of metal rods, the left end of the third counter-force support is connected with a support at the left end of the base, fourth counter-force supports are arranged at one ends, close to each other, of the supports at the front end and the rear end of the base, the hydraulic device is arranged at one ends, close to each other, of the fourth counter-force supports, a plurality of metal rods are arranged between the fourth counter-force supports, a striker rod is arranged on the left side of the emitter and penetrates through a hydraulic cylinder at the left end of the second counter-force support and is in sliding connection with the hydraulic cylinder, the right part of the striker rod is cylindrical, the left part of the striker rod is square, the left end of the striker rod is located on the left side of the second counter-force support, and a connecting ring is sleeved on the cylindrical part of the striker rod, the diameter of the connecting ring is smaller than that of a piston rod in the hydraulic cylinder, the impact rod is connected with the piston rod in a sliding mode, and two limiting rings are arranged inside the piston rod.
As a further aspect of the present invention, the portion of the piston rod inside the hydraulic cylinder is set to be cylindrical, and the portion of the piston rod outside the hydraulic cylinder is set to be square.
As the utility model discloses scheme further still, the number of metal pole sets up to four, the metal pole distributes on the fixing base with the mode of rectangle, and is connected through the metal pole between first counter-force support and the fixing base.
As the utility model discloses scheme further again, the right-hand member of second counter-force support is equipped with the connecting hole, and the connecting hole runs through second counter-force support.
As the utility model discloses scheme further still, all contactless between the metal pole between metal pole, the fixing base between third counter-force support and the second counter-force support and the first counter-force support, the metal pole between the fourth counter-force support.
As the utility model discloses further scheme again, distance between the spacing ring is greater than the thickness of go-between, and the internal diameter of spacing ring is the same with the external diameter of the cylindrical portion of striker rod.
Compared with the prior art, the beneficial effects of the utility model are that:
when the utility model is used, a test piece to be tested is placed in the true triaxial apparatus, the piston rod is pushed by the hydraulic cylinder to move towards one end of the test piece, thereby fixing the test piece, simultaneously giving a force in a single-axis or multi-axis direction to the test piece through the hydraulic cylinder, when the hydraulic cylinder drives the piston rod to move towards the direction of the test piece, the piston rod can drive the connecting ring to move towards the direction of the test piece through the limiting ring, the connecting ring drives the impact rod to move towards the direction of the test piece, so that the square part at the left end of the impact rod is contacted with the test piece, then the launcher is opened, the impact block which moves at high speed is launched by the launcher, the impact block gives a force to the impact rod towards the test piece, then through impact rod striking test piece to test the test piece, through the utility model discloses can press close to the true atress condition of concrete in the actual engineering more to the dynamic impact test of concrete under unipolar, biax and triaxial stress state.
Drawings
Fig. 1 is a schematic structural diagram of a concrete dynamic impact test device used in a true triaxial stress state.
Fig. 2 is a schematic structural diagram of a true triaxial apparatus used in a concrete dynamic impact test apparatus in a true triaxial stress state.
Fig. 3 is an exploded view of a true triaxial apparatus used in a concrete dynamic impact test apparatus in a true triaxial stress state.
FIG. 4 is a cross-sectional view of a hydraulic cylinder and a striker rod in a concrete dynamic impact testing apparatus under true triaxial stress.
Fig. 5 is an enlarged schematic structural view of fig. 4A in the concrete dynamic impact testing apparatus under true triaxial stress.
FIG. 6 is a partially enlarged view of a piston rod used in a concrete dynamic impact testing apparatus under true triaxial stress.
In the figure: 1. a base; 2. a supporting seat; 3. a transmitter; 4. a support; 5. a support plate; 6. a fixed seat; 300. a striker bar; 302. a connecting ring; 303. a limiting ring; 600. a hydraulic cylinder; 601. a first counter-force support; 602. a second counter-force support; 603. connecting holes; 604. a third counter-force support; 605. a fourth counter-force support; 606. a piston rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 6, in an embodiment of the present invention, a concrete dynamic impact test device under true triaxial stress state includes a base 1, a support seat 2 is disposed at a right end of the base 1, a transmitter 3 is disposed on the support seat 2, a bracket 4 is disposed at each of a front end, a rear end and a left end of the base 1, a support plate 5 is disposed at an upper end of the base 1 at a left side of the support seat 2, a fixing seat 6 is disposed at an upper end of the base 1 at a left side of the support plate 5, a hydraulic device is disposed at an upper end of the fixing seat 6, the hydraulic device includes a hydraulic cylinder 600 and a piston rod 606, a first counter-force support 601 is disposed above the fixing seat 6, the hydraulic device is also disposed at a lower end of the first counter-force support 601, a plurality of metal rods are disposed between the first counter-force support 601 and the fixing seat 6, a second counter-force support 602 is disposed at a right side of the fixing seat 6 above the base 1, the second counter-force support 602 is fixedly connected with the support plate 5, a third counter-force support 604 is arranged on the left side of the second counter-force support 602, a hydraulic device is arranged at one end, close to each other, of the second counter-force support 602 and the third counter-force support 604, the second counter-force support 602 and the third counter-force support 604 are connected through a plurality of metal rods, the left end of the third counter-force support 604 is connected with the support 4 at the left end of the base 1, a fourth counter-force support 605 is arranged at one end, close to each other, of the supports 4 at the front end and the rear end of the base 1, a hydraulic device is arranged at one end, close to each other, of the fourth counter-force support 605, a plurality of metal rods are arranged between the fourth counter-force supports 605, the striking rod 300 is arranged on the left side of the emitter 3, the striking rod 300 penetrates through the hydraulic cylinder 600 at the left end of the second counter-force support 602, the striking rod 300 is connected with the hydraulic cylinder 600 in a sliding manner, and the right part of the striking rod 300 is cylindrical, the left part of the impact rod 300 is set to be square, the left end of the impact rod 300 is located on the left side of the second counter-force support 602, the connecting ring 302 is sleeved on the cylindrical part of the impact rod 300, the diameter of the connecting ring 302 is smaller than that of a piston rod 606 in the hydraulic cylinder 600, the impact rod 300 is connected with the piston rod 606 in a sliding mode, and two limiting rings 303 are arranged inside the piston rod 606.
A portion of the piston rod 606 located inside the hydraulic cylinder 600 is configured to be cylindrical, and a portion of the piston rod 606 located outside the hydraulic cylinder 600 is configured to be square.
The number of the metal rods is four, the metal rods are distributed on the fixing seat 6 in a rectangular manner, and the first counter force support 601 is connected with the fixing seat 6 through the metal rods.
A connecting hole 603 is formed at the right end of the second reaction force support 602, and the connecting hole 603 penetrates through the second reaction force support 602.
The metal rod between the third reaction force carrier 604 and the second reaction force carrier 602, the metal rod between the holder 6 and the first reaction force carrier 601, and the metal rod between the fourth reaction force carrier 605 are not in contact with each other.
Wherein, the distance between the spacing rings 303 is larger than the thickness of the connecting ring 302, and the inner diameter of the spacing rings 303 is the same as the outer diameter of the cylindrical part of the striking rod 300.
The utility model discloses a theory of operation is:
when the utility model is used, a test piece to be tested is placed in a true triaxial device, the piston rod 606 is pushed by the hydraulic cylinder 600 to move towards one end of the test piece, thereby fixing the test piece, meanwhile, the single-axis or multi-axis force can be provided for the test piece by the hydraulic cylinder 600, when the hydraulic cylinder 600 drives the piston rod 606 to move towards the test piece, the piston rod 606 can drive the connecting ring 302 to move towards the test piece by the spacing ring 303, the connecting ring 302 drives the impact rod 300 to move towards the test piece, so that the left end square part of the impact rod 300 is contacted with the test piece, then the emitter 3 is opened, the impact block moving at high speed is emitted by the emitter 3, the impact rod 300 is provided with a force towards the test piece direction by the impact block, then the test piece is impacted by the impact rod 300, thereby testing the test piece, the utility model can be used for the dynamic impact test of concrete under the single-axis, double-axis and three-axis stress states, the method is more close to the actual stress condition of concrete in the actual engineering.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A concrete dynamic impact test device used under a true triaxial stress state comprises a base (1) and is characterized in that a support seat (2) is arranged at the right end of the base (1), a transmitter (3) is arranged on the support seat (2), supports (4) are arranged at the front end, the rear end and the left end of the base (1), a support plate (5) is arranged at the left side of the support seat (2) at the upper end of the base (1), a fixed seat (6) is arranged at the left side of the support plate (5) at the upper end of the base (1), a hydraulic device is arranged at the upper end of the fixed seat (6) and comprises a hydraulic cylinder (600) and a piston rod (606), a first counter-force support (601) is arranged above the fixed seat (6), a hydraulic device is also arranged at the lower end of the first counter-force support (601), and a plurality of metal rods are arranged between the first counter-force support (601) and the fixed seat (6), a second counter-force support (602) is arranged on the right side of the fixed seat (6) and above the base (1), the second counter-force support (602) is fixedly connected with the support plate (5), a third counter-force support (604) is arranged on the left side of the second counter-force support (602), hydraulic devices are arranged at the ends, close to each other, of the second counter-force support (602) and the third counter-force support (604), the second counter-force support (602) is connected with the third counter-force support (604) through a plurality of metal rods, the left end of the third counter-force support (604) is connected with a support (4) at the left end of the base (1), fourth counter-force supports (605) are arranged at the ends, close to each other, of the supports (4) at the front end and the rear end of the base (1), a hydraulic device is arranged at the ends, and a plurality of metal rods are arranged between the fourth counter-force supports (605), the left side of transmitter (3) is equipped with striker (300), striker (300) run through pneumatic cylinder (600) of second counter-force support (602) left end, and striker (300) and pneumatic cylinder (600) sliding connection, the right part of striker (300) sets up to cylindrical, and the left part of striker (300) sets up to square, the left end of striker (300) is located the left side of second counter-force support (602), it is equipped with go-between (302) to lie in cylindrical portion cover on striker (300), the diameter of go-between (302) is less than the diameter of piston rod (606) in pneumatic cylinder (600), and striker (606) and piston rod (606) sliding connection, piston rod (606) inside is equipped with two spacing rings (303).
2. The concrete dynamic impact test device under the true triaxial stress condition of claim 1, wherein a portion of the piston rod (606) inside the hydraulic cylinder (600) is configured as a cylinder, and a portion of the piston rod (606) outside the hydraulic cylinder (600) is configured as a square.
3. The device for testing the concrete dynamic impact under the true triaxial stress state according to claim 1, wherein the number of the metal rods is four, the metal rods are distributed on the fixing seat (6) in a rectangular manner, and the first counter force support (601) is connected with the fixing seat (6) through the metal rods.
4. The device for testing the concrete dynamic impact under the true triaxial stress state of claim 1, wherein the right end of the second reaction force support (602) is provided with a connecting hole (603), and the connecting hole (603) penetrates through the second reaction force support (602).
5. The device for testing the concrete dynamic impact in the true triaxial stress state according to claim 1, wherein the metal rod between the third reaction force support (604) and the second reaction force support (602), the metal rod between the fixed seat (6) and the first reaction force support (601), and the metal rod between the fourth reaction force support (605) are all in non-contact.
6. The device for testing the concrete dynamic impact under the true triaxial stress state of claim 1, wherein the distance between the limit rings (303) is larger than the thickness of the connecting ring (302), and the inner diameter of the limit rings (303) is the same as the outer diameter of the cylindrical part of the impact rod (300).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023088813.0U CN214121879U (en) | 2020-12-18 | 2020-12-18 | Concrete dynamic impact test device used in true triaxial stress state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023088813.0U CN214121879U (en) | 2020-12-18 | 2020-12-18 | Concrete dynamic impact test device used in true triaxial stress state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214121879U true CN214121879U (en) | 2021-09-03 |
Family
ID=77512679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023088813.0U Expired - Fee Related CN214121879U (en) | 2020-12-18 | 2020-12-18 | Concrete dynamic impact test device used in true triaxial stress state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214121879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166667A (en) * | 2021-11-19 | 2022-03-11 | 广东石油化工学院 | Multidirectional physical impact test equipment for testing fatigue of metal material |
-
2020
- 2020-12-18 CN CN202023088813.0U patent/CN214121879U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166667A (en) * | 2021-11-19 | 2022-03-11 | 广东石油化工学院 | Multidirectional physical impact test equipment for testing fatigue of metal material |
| CN114166667B (en) * | 2021-11-19 | 2023-09-29 | 广东石油化工学院 | Multidirectional physical impact test equipment for testing fatigue degree of metal material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107014690B (en) | Low-frequency disturbance and high-speed impact type high-pressure true triaxial test device and method | |
| CN103969107B (en) | High pressure servo moves true triaxial test machine | |
| CN214121879U (en) | Concrete dynamic impact test device used in true triaxial stress state | |
| CN103234844B (en) | A kind of pendulum loads mid strain rate Hopkinon depression bar test unit and method | |
| CN103552697B (en) | Active suspension type satellite antenna three-dimensional developing test device | |
| WO2020098290A1 (en) | Dynamic and static multifunctional test servo loading system | |
| CN102279124A (en) | Six degree of freedom boundary load simulation experiment system | |
| Zhou et al. | Drop/impact tests and analysis of typical portable electronic devices | |
| CN113447365B (en) | Waveform loading type coal body creep impact disturbance loading device and test method | |
| CN109406310A (en) | The Dynamic And Static Loads synchronous servo control system of three axis six-way Hopkinson pressure bars | |
| CN110132762A (en) | High pressure servo true triaxial rockburst experimental facilities | |
| CN115979850A (en) | Pendulum bob-electromagnetic synergistic acceleration impact pressing in-situ testing device | |
| CN107860662B (en) | Land test method for large-scale deep water active and passive combined wave compensation device | |
| CN111307616A (en) | Rock structural plane high-frequency disturbance shear test device | |
| CN103776687A (en) | Three-dimensional Hopkinson pressure bar steering head device | |
| CN105547690B (en) | A kind of bearing sealed ring durability test device | |
| CN109323834B (en) | Six-dimensional dynamic force generating device | |
| Li et al. | Fault diagnosis research on impact system of hydraulic rock drill based on internal mechanism testing method | |
| CN107255618B (en) | A kind of Large Launch Vehicle binding mechanism top load lubrication friction pilot system | |
| CN214426944U (en) | Multi-degree-of-freedom vibration test device | |
| CN207197770U (en) | Shock table | |
| CN115290474A (en) | Tunnel group drilling and blasting excavation experimental device and method under plane stress | |
| CN103776607A (en) | Three direction quasi static test actuator connecting device | |
| CN112763196B (en) | Impact slip test device for shipboard aircraft arresting cable | |
| CN111426750B (en) | Simulation test device and test method capable of generating cylindrical wave |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210903 |